Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '119317953ee1584e55163e0ec0d1c56e78a4182390486281328e5fdcdf253617' 
  AND token = 'SWpyLe451rXytJ784/uQ/4O3L68A2elxxwKOodamPvA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}